SONOFF MINI-D Smart Wi-Fi + eWeLink-Remote relay module
SONOFF MINI-D Smart Wi-Fi + eWeLink-Remote relay module
SONOFF MINI-D is a compact and highly versatile smart Wi-Fi relay, purpose-built for dry contact (potential-free) applications. Unlike standard smart switches that pass mains voltage to the connected device, the MINI-D safely opens or closes a circuit without passing through its own power supply. This makes it an ideal and safe solution for automating garage doors, motorized gate openers, boiler thermostats, and access control systems.
By integrating dual power options (AC/DC) and native Matter support, it avoids vendor lock-in and ensures seamless local control across all major smart home ecosystems, while easily fitting into tight electrical back boxes.
Key Features
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Dry Contact Output (NO/NC): Features Normally Open (NO), Normally Closed (NC), and Common (COM) terminals. Acting as a potential-free switch, it completely isolates the module's power supply from the connected load. This is exactly how most garage door openers and HVAC systems expect to be triggered.
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Dual AC/DC Power Supply: Incredibly flexible for installation. The module's operational brain can be powered using standard mains AC (100-240V) or low-voltage DC (12-48V), making it perfect for both residential wall boxes and low-voltage gate control panels.
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Matter over Wi-Fi Certified: Integrates seamlessly into the Matter ecosystem without requiring proprietary cloud apps or account linking. Connect it locally and directly to Apple HomeKit, Google Home, Amazon Alexa, Samsung SmartThings, or Home Assistant.
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Detach Relay Mode: Allows you to digitally separate the physical wall switch (connected to the S1/S2 terminals) from the actual relay output. Pressing the wall switch can trigger a smart scene or routine in your hub without mechanically actuating the relay itself.
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eWeLink-Remote (Bluetooth) Gateway: Contains a built-in Bluetooth receiver. You can pair it directly with wireless, battery-powered SONOFF switches (such as the SwitchMan R5) for reliable local control without running new electrical wires across the room.
Technical Specifications
| Feature | Specification |
| Model | MINI-D |
| Microcontroller (MCU) | ESP32-D0WDR2 |
| Wireless Protocol | Wi-Fi (802.11 b/g/n 2.4 GHz), Bluetooth (eWeLink-Remote), Matter |
| Power Supply (Input) | AC 100-240V ~ 50/60Hz (max 0.1 A) OR DC 12-48V (max 1 A) |
| Output Type | Dry contact (potential-free) / NO, NC, COM |
| Maximum Load | 24V DC / max 2 A (resistive) or 12/24V / max 8 W (DC motor) |
| Compatible Switch Types | Momentary (push-button), toggle, SPDT (two-way/changeover) |
| Detach Relay Mode | Yes |
| Platform Compatibility | eWeLink, Matter (Apple Home, Google Home, Alexa, SmartThings, HA) |
| Dimensions | 41 mm × 43 mm × 21.5 mm |
| Weight | ~34.5 g |
| Case Material | Fire-retardant polycarbonate (PC) |
Package Contents
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SONOFF MINI-D Wi-Fi Smart Switch
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Quick Start Guide and wiring diagram
(Note: The device does not support simultaneous AC and DC power supply. Please choose only one power source during installation.)